As home secretary, Theresa May introduced the “hostile environment” approach, which was billed as focused on “illegal migration” but swiftly came to represent the government’s attitude to immigration in general. It mandated immigration status checks by doctors, landlords and others and came alongside the infamous “go home” billboard vans. The government also abolished post-study work visas for foreign students. The most shocking example of the consequences of the approach came in the Windrush scandal, which broke in 2018. It saw thousands of people, mostly from Caribbean countries wrongly classified as illegal immigrants and detained, denied rights, threatened with deportation and even forced to leave the UK (pictured above, a Windrush solidarity rally). There is no evidence that the strategy reduced legal or illegal migration numbers, and voluntary returns – a reasonable measure of the success of a policy aimed at persuading people to leave the country of their own accord – actually fell by two-thirds between 2013 and 2019. 2015 | Net migration: 333,000 With a European refugee crisis under way as a result of conflict in the Middle East, the Conservatives’ manifesto for the next election retained the “ambition” of reducing net migration to the tens of thousands. Meanwhile, under pressure from Ukip on the right, the Conservatives also promised an in/out referendum on EU membership. As you may remember, the Vote Leave campaign the next year repeatedly suggested that only Brexit could make the tens of thousands target achievable. 2017 | Net migration: 208,000 Theresa May’s manifesto again retained the tens of thousands pledge; May said that leaving the European Union “enables us to control our borders in relation to people coming from the EU, as well as those who are coming from outside”. With the flow of immigrants from the EU sharply declining and a spike in arrivals from the rest of the world not yet in full swing, the net migration number temporarily dropped. 2019 | Net migration: 184,000 Amid significant shortages of workers in social care and agriculture, among other sectors, Boris Johnson dropped the tens of thousands pledge, and introduced an “Australian-style points-based system”. He drew a distinction between “unskilled immigrants” coming from the EU and the need to “be much more open to high-skilled immigration”. The Home Office claimed that the new system would reduce unskilled EU migration by 90,000, but increase skilled migration by 65,000 a year. It swiftly stopped using that figure, which appeared to have no substantial basis. 2020 | Net migration: 94,000 With severe labour shortages as a result of the end to free movement now biting, particularly in social care, the government launched a new health and care visa. Thresholds on salaries and skills were reduced, and the following year, with empty shelves in supermarkets and fuel delivery shortages, seasonal visas for poultry workers and HGV drivers were increased to “save Christmas”. The government also reintroduced the post-study work visa abolished when Theresa May was home secretary. 2023 | Net migration: 906,000 With net migration at its highest-ever level, some 807,000 above the Cameron government’s defunct target, Rishi Sunak’s government now set out plans to increase the salary threshold for workers to be able to bring family to the UK from £18,600 to £38,700. But much of the rhetoric – particularly on the Rwanda scheme – continued to centre around illegal migration and Channel crossings, a vastly smaller contributor to total arrivals. 2025 | Net migration (last year): 728,000 Keir Starmer’s government promises to raise the level of qualification needed to secure a skilled work visa; end all overseas recruitment for social care work after a transition period; require all adult dependents coming to the UK to demonstrate basic English skills; tighten up assessments of institutions granting student visas; and make people wait longer to seek permanent settlement in the UK. (Peter Walker has a full rundown here.) Starmer insists that this will lead to a significant fall in overall numbers by the end of this parliament. But mindful of the history of bold claims and reversals by previous governments, he declines to set an overall target. Figures are drawn from a Migration Observatory briefing in December 2024, using International Passenger Survey-based ONS data until 2010, and Office for National Statistics experimental data thereafter. All figures are estimates with substantial uncertainty, the Migration Observatory notes. |